Japan Mensa Membership Card - Not for Sale I received this from an acquaintance who was a Mensa member, but I have no use for it, so I am putting it up for sale. How about adding it to your collection? I received it in a clean condition and have stored it without carrying it around. The individual information such as the serial number on the bottom right of the card's front and the name and date of birth on the back has been erased. Please check the condition from the images. * Although personal information has been removed as carefully as possible, please understand that there may be minor scratches due to the nature of the item.